dianya

代码说明：

说明：  对一路工频交流电（频率波动范围为50 ±1Hz、有失真的正弦波）的电压有效值、电流有效值、有功功率、无功功率、功率因数进行测量的数字式多用表。通过LCD12864显示(Frequency of the AC all the way (the frequency of fluctuations in the range of 50 ± 1Hz, there is distortion of the sine wave) RMS voltage, RMS current, active power, reactive power, power factor measurement of the digital multimeter. LCD12864 show through)